Mercurial > hg > graal-jvmci-8
comparison src/os/linux/vm/os_linux.cpp @ 20:e195fe4c40c7
6629887: 64-bit windows should not restrict default heap size to 1400m
Reviewed-by: jmasa, sbohne, ikrylov, xlu
| author | phh |
|---|---|
| date | Wed, 05 Dec 2007 09:04:00 -0800 |
| parents | a61af66fc99e |
| children | cd0742ba123c |
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| 19:a73cc31728fe | 20:e195fe4c40c7 |
|---|---|
| 112 return (julong)si.freeram * si.mem_unit; | 112 return (julong)si.freeram * si.mem_unit; |
| 113 } | 113 } |
| 114 | 114 |
| 115 julong os::physical_memory() { | 115 julong os::physical_memory() { |
| 116 return Linux::physical_memory(); | 116 return Linux::physical_memory(); |
| 117 } | |
| 118 | |
| 119 julong os::allocatable_physical_memory(julong size) { | |
| 120 #ifdef _LP64 | |
| 121 return size; | |
| 122 #else | |
| 123 julong result = MIN2(size, (julong)3800*M); | |
| 124 if (!is_allocatable(result)) { | |
| 125 // See comments under solaris for alignment considerations | |
| 126 julong reasonable_size = (julong)2*G - 2 * os::vm_page_size(); | |
| 127 result = MIN2(size, reasonable_size); | |
| 128 } | |
| 129 return result; | |
| 130 #endif // _LP64 | |
| 117 } | 131 } |
| 118 | 132 |
| 119 //////////////////////////////////////////////////////////////////////////////// | 133 //////////////////////////////////////////////////////////////////////////////// |
| 120 // environment support | 134 // environment support |
| 121 | 135 |